Cold location controller for top-hat rail installation with enhanced operating modes for 4 cold locations
CRC-BL_V2.4.0_PI_2021-02_DE
3
Subject to technical changes
CRC-BL
Version and validity of the documentation
Any versions not listed are special solutions for individual projects and are not described in detail in this document.
This document automatically ceases to be valid if a new technical description is issued.
Manufacturer:
Wurm GmbH & Co. KG Elektronische Systeme, Morsbachtalstraße 30, D-42857 Remscheid
You can find more information on our website at
www.wurm.de
.
1.4
Connection diagram
Fig. 2: Connection diagram
Version
Date
V2.4.0
and higher
2021-02
Documentation status
Pos.
Designation
Function
1
C-BUS interface
Data communication (H = CAN high, S = shield,
L = CAN low)
2
Output relays K1...K4
Dependent on cold location type, floating contact,
230V~, 4(2)A
3
Power supply L
230V~/50Hz
4
Power supply N
Neutral conductor
5
Digital inputs Di1...Di4
Dependent on cold location type
6
Defrost bus
Defrost synchronisation
7
Sensor inputs S1...S4
Temperature sensor
12 13 14 15 16 17 18
11
22 23 24 25 26 27 28 29
21
38 37 36 35 34 33 32 31
39
4 3 2 1
12 13 14 15 16 17 18
11
22 23 24 25 26 27 28 29
21
38 37 36 35 34 33 32 31
39
CRC-BL
Frigoentry Blueline
2sec.
d
c
1
2
4
6
3
5
7
S2
S3
S4
S1
GND
Di2
Sync.
Di3
N
Di1
Di4
L
K1
K2
K3
K4
H
0V
S
L
